The risers and treads of some shop-built stairs are mortised together to _____.
a. speed up assembly
b. properly align the treads
c. reduce fabrication costs
d. prevent squeaking
Answer: D
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The International System of Units is another name for the _____.
a. inch-pound system b. duodecimal system c. metric system d. binary system
As with the Cartesian coordinate system, ____________________ numbers are needed to locate each point in the polar coordinate system.
Fill in the blank(s) with the appropriate word(s).
A properly installed lap-seam metal roof compensates for the longitudinal movement of the roof panels by
_____. a. slotting the panels so they can move on their fasteners b. attaching the panels to purlins, which roll or bend to absorb the movement c. using special fasteners that absorb the movement d. flexing and bending the panels so no panel-to-panel movement occurs
If both a higher voltage and a higher current are desired, the cells or batteries can be connected in a ____ configuration.
A. series-resistant B. series-parallel C. series-opposing D. series-aiding